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1. 发明专利

JP2002324365A INFORMATION RECORDING FORMAT, INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING/REPRODUCING APPARATUS 失效
公开(公告)号：JP2002324365A
公开(公告)日：2002-11-08
申请号：JP2001129612
申请日：2001-04-26
申请人： HITACHI LTD , TOSHIBA CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： KATAYAMA YUKARI , TAIRA SHIGEKI , MAEDA TAKESHI , MIYAMOTO JIICHI , KAWAMAE OSAMU , KOJIMA TADASHI , NOZEN CHOSAKU , KASHIWABARA YUTAKA , TAKAGI YUJI , KIMURA NAOHIRO
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To increase the disk capacity, in which the compatibility with those according to the prior arts is not greatly deteriorated, and in which a more number of sectors can be obtained. SOLUTION: The n bits of a head byte of a sector format are allotted to a region in which a seed for a scramble is stored. The 8-n bits of the head byte are used as the bits for storing a sector ID(identification), in which this portion is matched with the 24 bits data field number existing before and is used for storing a sector indigenous number.

2. 发明专利

JP2003085874A SCRAMBLING METHOD FOR DATA FRAME 审中-公开
公开(公告)号：JP2003085874A
公开(公告)日：2003-03-20
申请号：JP2001273700
申请日：2001-09-10
申请人： TOSHIBA CORP , HITACHI LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： NOZEN CHOSAKU , KASHIWABARA YUTAKA , KOJIMA TADASHI , KATAYAMA YUKARI , TAIRA SHIGEKI , MAEDA TAKESHI , MIYAMOTO JIICHI , KAWAMAE OSAMU , TAKAGI YUJI , KIMURA NAOHIRO
IPC分类号： G11B20/10 , G11B7/30 , G11B20/12 , H04L9/22
摘要： PROBLEM TO BE SOLVED: To increase the number of repetitively recordable times to an information medium which is capable of iteratively performing reading-out/writing. SOLUTION: An initial value (seed) of scrambling is arranged in a position except the top of a data frame (ST100 to ST103). Scrambling data in which patterns are initialized by the initial value (seed) is formed (ST107). The exclusive-ORs with the scrambling data are successively taken for the entire part of the data frame including the initial value (seed), thereby, randomizing of the data within the data frame is performed (ST106).

3. 发明专利

JP2002367296A Error correction encoding method of disk medium, error correction encoding method, disk medium, error correction method and error correction circuit 审中-公开
标题翻译：磁盘错误校正方法，错误校正方法，磁盘介质，错误校正方法和错误校正电路
公开(公告)号：JP2002367296A
公开(公告)日：2002-12-20
申请号：JP2001169742
申请日：2001-06-05
申请人： Hitachi Ltd , Matsushita Electric Ind Co Ltd , Toshiba Corp , 松下電器産業株式会社 , 株式会社日立製作所 , 株式会社東芝
发明人： TAKAGI YUJI , USUI MAKOTO , YABUNO HIROYUKI , NAKAMURA ATSUSHI , KOBAYASHI RYOJI , KIMURA NAOHIRO , TAIRA SHIGEKI , KAWAMAE OSAMU , HOSHISAWA HIROSHI , NOZEN CHOSAKU , KASHIWABARA YUTAKA
IPC分类号： G06F11/10 , G06F12/16 , G11B20/10 , G11B20/12 , G11B20/18 , H03M13/27 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To provide an error correction encoding method which reduces the influence of the burst error accompanying a trend toward a higher density in development of next generation DVDs, has high interchangeability with heretofore and is strong to the burst error. SOLUTION: This error correction encoding method of a disk medium comprises interleaving and delivering two product codes in accordance with a prescribed interleaving rule and recording the same to the disk medium. The method described above has a second interleaving step of substituding the upper R/2 lines of S pieces of respective sector data of the product code on one side of the two product codes and succeeding R/2 lines with line units and a third interleaving step of alternately delivering the two product codes in the line units and recording the data by each of the delivered (R+1) lines as physical sector data in order of delivery to the disk medium, by which the method is made strong to the burst error and the recording of the address in the recording data in the same manner as heretofore is made possible.
摘要翻译：要解决的问题：为了提供一种在下一代DVD的开发中减少伴随着更高密度的趋势的突发错误的影响的纠错编码方法，与以前具有高可互换性，并且对于突发错误是强大的。解决方案：盘介质的纠错编码方法包括根据规定的交织规则对两个产品代码进行交织和传送，并将其记录到盘介质。上述方法具有第二交错步骤，用于将两个乘积码的一侧上的乘积代码的S个相应扇区数据的上R / 2线和后续的R / 2线与线单元和第三交织步骤在行单元中交替地递送两个乘积代码，并且通过递送的（R + 1）行中的每个作为物理扇区数据将数据记录到传送到盘介质的顺序，由此使该方法对于突发错误并且以与之前相同的方式在记录数据中记录地址成为可能。

4. 发明专利

JP2002329368A ERROR CORRECTION ENCODING METHOD FOR DISK MEDIUM, ERROR CORRECTION ENCODING CIRCUIT, DISK MEDIUM, ERROR CORRECTION METHOD, AND ERROR CORRECTION CIRCUIT 失效
公开(公告)号：JP2002329368A
公开(公告)日：2002-11-15
申请号：JP2001132243
申请日：2001-04-27
申请人： MATSUSHITA ELECTRIC IND CO LTD , HITACHI LTD , TOSHIBA CORP
发明人： TAKAGI YUJI , USUI MAKOTO , YABUNO HIROYUKI , NAKAMURA ATSUSHI , KOBAYASHI RYOJI , KIMURA NAOHIRO , TAIRA SHIGEKI , KAWAMAE OSAMU , HOSHISAWA HIROSHI , NOZEN CHOSAKU , KASHIWABARA YUTAKA
IPC分类号： G06F11/10 , G11B20/10 , G11B20/12 , G11B20/18 , H03M13/27 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To provide an error correction encoding method which is compatible to conventional methods and is strong against burst error by reducing an influence of burst error accompanied with the rise of density in DVD development for the next generation. SOLUTION: An error correction encoding method for disk mediums is provided which interleaves two product codes in the order based on a prescribed interleave rule and sends them to record them in a disk medium. The error correction encoding method has a second interleave step where R/2 higher rows of each of S sector data of one of two product codes and R/2 following rows are substituted in the unit of rows and a third interleave step where two products codes are alternately sent in the unit of rows and sent data of every (R+1)th row are recorded in the disk medium as physical sector data in the sending order, and thus this method is strong against burst error and can record an address in recording data in the same manner as conventional methods.

5. 发明专利

JP2002190158A ERROR-CORRECTING CODING METHOD OF DISK MEDIUM, OPTICAL DISK, ERROR-CORRECTING METHOD, ERROR-CORRECTING CODING CIRCUIT AND ERROR-CORRECTING CIRCUIT 失效
公开(公告)号：JP2002190158A
公开(公告)日：2002-07-05
申请号：JP2000387562
申请日：2000-12-20
申请人： MATSUSHITA ELECTRIC IND CO LTD , HITACHI LTD
发明人： TAKAGI YUJI , USUI MAKOTO , YABUNO HIROYUKI , NAKAMURA ATSUSHI , KOBAYASHI RYOJI , KIMURA NAOHIRO , TAIRA SHIGEKI , KAWAMAE OSAMU , HOSHISAWA HIROSHI
IPC分类号： G06F11/10 , G11B20/12 , G11B20/18 , H03M13/27 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To overcome the problems such that the single burst error permits the correction of the correcting code in the line direction to be sometimes impossible, and a plurality of burst error occurrences permit the correction of the whole product code to become impossible, in a conventional error-correcting method for recording the product code two-dimensionally coded in the line direction. SOLUTION: By the product-code formation step, a reliable error correction can be carried out by alternately arranging two product codes stored on a memory every line and recording these in the slant direction, and in the case of coding, even if it is the recording in the slant direction, the address can be read at a fixed interval by performing a data transposition step and a one- way cyclic step.

6. 发明专利

JP2002237756A ENCODING METHOD AND DECODING METHOD AND ENCODING CIRCUIT AND DECODING CIRCUIT AND STORAGE DEVICE AND STORAGE MEDIUM AND COMMUNICATION EQUIPMENT 失效
公开(公告)号：JP2002237756A
公开(公告)日：2002-08-23
申请号：JP2001033980
申请日：2001-02-09
申请人： HITACHI LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： TAIRA SHIGEKI , HOSHISAWA HIROSHI , KAWAMAE OSAMU , TAKAGI YUJI , NAKAMURA ATSUSHI , KIMURA NAOHIRO
IPC分类号： G06F11/10 , G11B20/12 , G11B20/18 , H03M13/15 , H03M13/27 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To provide an encoding method and circuit for transmitting an error correction code whose correcting capability is stronger than that of a product code against a relatively short burst error, and a decoding method and circuit for decoding this. SOLUTION: In this encoding method, n pieces of h 2 column/w 2 line product codes are generated for the original data of an (n×h1×w1) symbol, and then interleaving is operated with symbol units in each connection line of an (n×w2) symbol obtained by connecting every w2 symbol in each product code 1 line by using interleave rules different for each connection line, and the results are successively transmitted. In a decoding method, deinterleave is operated to the in-line symbol unit interleave performed to each connection line of the received data at the time of encoding, and error correction is performed to the obtained product code.

7. 发明专利

JP2006277815A Reproduction control circuit, integrated circuit, and information reproducing device 审中-公开
标题翻译：生成控制电路，集成电路和信息再现设备
公开(公告)号：JP2006277815A
公开(公告)日：2006-10-12
申请号：JP2005094230
申请日：2005-03-29
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKAGI YUJI
IPC分类号： G11B20/10 , G06F3/06 , G10L19/00 , H04N5/765 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To provide a reproduction control circuit capable of processing a copyright protection in a sector unit when data are transferred to a host while accelerating a data transfer speed to a host device such as a host personal computer, and to provide an integrated circuit and an information reproducing device.
SOLUTION: The reproduction control circuit is provided with: an IF control means for controlling interfacing with a host device or circuit; a transfer control information generation means for generating predetermined transfer control information for each sector and storing it in a storage means; and a transfer control means for executing predetermined transfer control for transfer data to the host device or circuit according to the transfer control information. When executing data transfer via the IF control means, the transfer control means performs the predetermined transfer control in reference to the transfer control information stored in the storage means.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种再现控制电路，当数据被传送到主机时能够处理扇区单元中的版权保护，同时加速到诸如主人个人计算机的主机设备的数据传送速度，并且提供集成电路和信息再现装置。解决方案：再现控制电路设置有：用于控制与主机设备或电路的接口的IF控制装置; 传送控制信息产生装置，用于为每个扇区产生预定的传送控制信息并将其存储在存储装置中; 以及传送控制装置，用于根据传送控制信息执行用于传送数据到主机设备或电路的预定传送控制。在通过IF控制装置执行数据传送时，传送控制装置参照存储在存储装置中的传送控制信息执行预定的传送控制。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2004310824A Error correcting method, error correcting circuit, and information reproducing device 审中-公开
公开(公告)号：JP2004310824A
公开(公告)日：2004-11-04
申请号：JP2003099987
申请日：2003-04-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKAGI YUJI
IPC分类号： G06F11/10 , G06F11/14 , G11B20/18 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To provide an error correcting method, an error correcting circuit and an information reproducing device capable of performing the error correction of composite coded data at high speed when there are few errors. SOLUTION: When the error correction of second coded data is performed by a second error-correcting step in the beginning and correction of one or more second error-correcting codes become impossible, the error correction of first coded data by a first error-correcting step and the generation of dissolving location information by a dissolving location information generating step are performed and then the error correction of the second coded data by the second error-correcting step is performed with dissolving correction using the dissolving location information. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2002269921A DEVICE AND METHOD FOR RECORDING INFORMATION ON DISK RECORDING MEDIUM 失效
公开(公告)号：JP2002269921A
公开(公告)日：2002-09-20
申请号：JP2001073729
申请日：2001-03-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YABUNO HIROYUKI , USUI MAKOTO , TAKAGI YUJI , NAKAMURA ATSUSHI , KIMURA NAOHIRO
IPC分类号： G11B20/12 , G11B20/10 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To efficiently use a recording medium by suppressing a required quantity of substitute areas in a disk recording medium having a plurality of recording sectors each comprising lines in each of which two product codes are interleaved for each line. SOLUTION: There is provided a defective sector discrimination means or a defective sector discrimination step that divides each of lines in a sector into two sub groups on the basis of to which of two product coded data each line of each sector has belonged and judges whether a sector is defective on the basis of the number of lines where errors cannot be corrected in each subgroup so as to attain substitute recording by the slipping system for each sector.

10. 发明专利

JP2002117633A ERROR CORRECTION CODING METHOD FOR DISK MEDIUM, OPTICAL DISK, ERROR CORRECTION METHOD, ERROR CORRECTION CODING CIRCUIT AND ERROR CORRECTION CIRCUIT 失效
公开(公告)号：JP2002117633A
公开(公告)日：2002-04-19
申请号：JP2000309894
申请日：2000-10-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAGI YUJI , KIMURA NAOHIRO , NAKAMURA ATSUSHI , USUI MAKOTO , TANAKA SHINICHI , YABUNO HIROYUKI , KOBAYASHI RYOJI
IPC分类号： G06F11/10 , G11B20/12 , G11B20/18 , H03M13/15 , H03M13/27 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To solve the problem of a case existing in which a correction code in a row direction becomes uncorrectable due to a single burst error, in a conventional error correction method which records a product code coded two- dimensionally in the row direction, and the whole product codes become uncorrectable when a plurality of burst errors are produced. SOLUTION: The error correction coding method has a coding step, in which the error detection correction coding of matrix user data is performed in at least three or more directions. Reliable error correction is enabled, by making at least two directions among the three encoding directions different from a recording direction to a disk medium, so that two correction codes do not become uncorrectable with the single burst error.

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